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52V downtube lithium battery, 20Ah. Replacement for Volition KOALA Pro Deluxe, KOALA Original 3.1. Reention Polly DP7 shell, 90x150x368mm, 30A BMS, up to 1500W.
Volition KOALA Pro Deluxe / KOALA Original Replacement 52V 20Ah Downtube Battery
This 52V downtube lithium battery is a direct replacement for the Volition KOALA Pro Deluxe and KOALA Original (New 3.1) e-bikes. Housed in the proven Reention Polly DP2170-7 down-tube shell, it delivers strong power and long range for high-torque fat-tire e-bikes.
Compatibility
✅ Volition KOALA Pro Deluxe Electric Bike
✅ Volition KOALA Original (New 3.1) Electric Bike
✅ Also fits other e-bikes using the Reention Polly DP2170-7 battery dock
✅ Fits motors rated 500W–1500W
Precise Dimensions & Specifications
| Parameter | Value |
|---|---|
| Battery Position | Down tube |
| Casing | Reention Polly DP2170-7 (DP-7) |
| Nominal Voltage | 52V |
| Nominal Capacity | 20Ah |
| Dimensions | 90 × 150 × 368mm |
| Cell Type | Korea/Japan 21700 Li-ion |
| Cell Capacity | 5000mAh |
| Configuration | 14s4p |
| BMS Protection | 30A |
| Charger | 54.6V 3A |
| Weight | 5kg |
| Cycle Life | 800–1000 times |
| Ports | Key lock, LED display, charge & discharge port (5pin/4pin) |
| Fit Motor | 500W–1500W |
Package Includes
1 × 52V downtube battery (20Ah)
1 × 54.6V 3A charger
Key Features
✅ Drop-in Replacement: Built to the Reention Polly DP2170-7 down-tube mount for a true fit.
✅ Quality Korea/Japan 21700 Cells: High capacity and stable discharge for long service life.
✅ Smart 30A BMS: Over-charge, over-discharge, over-current and short-circuit protection.
✅ Lock & Display: Key lock for security, LED power display, charge and discharge ports.
✅ High Power Support: Fits 500W–1500W hub motors.
Specifications
Brand: OEM compatible (customizable)
Product Name: Down-tube Lithium Battery
Casing: Reention Polly DP2170-7 (DP-7)
Nominal Voltage: 52V
Capacity: 20Ah
Dimensions: 90 × 150 × 368mm
Cell: Korea/Japan 21700 (5000mAh)
Configuration: 14s4p
BMS: 30A
Charger: 54.6V 3A
Weight: 5kg
Cycle Life: 800–1000 times
Compatible Bikes: Volition KOALA Pro Deluxe, KOALA Original (New 3.1)
Fit Motor: 500W–1500W
Important Notes
Please verify your bike’s original battery voltage is 52V and connector matches before ordering.
Volition KOALA Pro Deluxe original battery is 52V 20Ah (1050Wh); KOALA Original is 52V 900Wh — the 20Ah pack is compatible/upgrade.
Capacity, weight and dimensions may vary slightly; allow minor measurement tolerance.
Only the battery and charger are included; other accessories are not part of the package.
We specialize in mid-drive motors and e-bike parts. Strict testing, powerful R&D and flexible OEM service guarantee long-term cooperation.
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For more FAQs and further details, please get in touch with us
We supply genuine OEM parts and premium compatible aftermarket replacement parts for e-bikes, including motor components, controllers, throttles, PAS sensors, wiring harnesses, connectors and Bosch form-factor batteries.
We serve mainstream drive system manufacturers: Ananda, Bafang, Aikema, Tongsheng, Shengyi, Bosch and more. We also provide repair components for complete e-bike brands including Sur‑Ron, Aventon, Trek and many others.
All items are brand-new and inspected before shipment. We do not supply second-hand or refurbished goods.
Our team verifies compatibility according to your bike model, motor info or original part photos. We confirm available OEM parts or recommend workable alternative solutions.
Yes. Flexible order sizes are supported, ranging from single spare parts to bulk purchases.
Sea freight, air freight and rail transport are optional.
Lead time varies by item and shipping mode. We confirm exact timelines before each order and share tracking updates.
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